摘要
侯马地震台水管仪NS分量的观测资料,多次出现一些高频抖动并伴有V字波形,临汾台CTC-IE宽带测震仪在同时段也记录到长周期的异常波动信号。对比发现,这些异常与热带气旋台风的形成、近海海面6级以上的大风,在时间上有很好的对应关系。通过进一步分析得出,水管仪Ⅴ字波形、宽带地震计的长周期异常波动信号,是由热带气旋台风及近海海面6级以上大风引起。
Observation data of NS component of water tube tiltmeter at Houma Station appeared high frequency vibrations with V waveform many times.Meanwhile the CTC-IE broadband seismograph at Linfen Station recorded long period abnormal fluctuation signal.It is found that these anomalies well correlated with tropical cyclones and level 6offshore winds.The V waveform of water tube tiltmeter and long period abnormal fluctuation signal of broadband seismograph are caused by tropical cyclones and level 6offshore winds.
出处
《山西地震》
2015年第3期10-13,37,共5页
Earthquake Research in Shanxi
基金
山西省地震局科研项目(SBK-1329)
关键词
异常波动
高频抖动
热带气旋台风
Abnormal fluctuation
High frequency vibration
Tropical cyclone
